kicad/pcbnew/plot_brditems_plotter.cpp

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 1992-2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include <algorithm>                          // for min
#include <bitset>                             // for bitset, operator&, __bi...
#include <math.h>                             // for abs
#include <stddef.h>                           // for NULL, size_t

#include <geometry/seg.h>                     // for SEG
#include <geometry/shape_circle.h>
#include <geometry/shape_line_chain.h>        // for SHAPE_LINE_CHAIN
#include <geometry/shape_poly_set.h>          // for SHAPE_POLY_SET, SHAPE_P...
#include <geometry/shape_segment.h>
#include <string_utils.h>
#include <macros.h>
#include <math/util.h>                        // for KiROUND, Clamp
#include <math/vector2d.h>                    // for VECTOR2I
#include <plotters/plotter_gerber.h>
#include <trigo.h>

#include <board_design_settings.h>            // for BOARD_DESIGN_SETTINGS
#include <core/typeinfo.h>                    // for dyn_cast, PCB_DIMENSION_T
#include <gbr_metadata.h>
#include <gbr_netlist_metadata.h>             // for GBR_NETLIST_METADATA
#include <layer_ids.h>                        // for LSET, IsCopperLayer
#include <pad_shapes.h>                       // for PAD_ATTRIB::NPTH
#include <pcbplot.h>
#include <pcb_plot_params.h>                  // for PCB_PLOT_PARAMS, PCB_PL...
#include <advanced_config.h>

#include <board.h>
#include <board_item.h>                       // for BOARD_ITEM, S_CIRCLE
#include <pcb_dimension.h>
#include <pcb_shape.h>
#include <fp_shape.h>
#include <footprint.h>
#include <fp_text.h>
#include <pcb_track.h>
#include <pad.h>
#include <pcb_target.h>
#include <pcb_text.h>
#include <zone.h>

#include <wx/debug.h>                         // for wxASSERT_MSG
#include <wx/gdicmn.h>


COLOR4D BRDITEMS_PLOTTER::getColor( int aLayer ) const
{
    COLOR4D color = ColorSettings()->GetColor( aLayer );

    // A hack to avoid plotting a white item in white color, expecting the paper
    // is also white: use a non white color:
    if( color == COLOR4D::WHITE )
        color = COLOR4D( LIGHTGRAY );

    return color;
}


void BRDITEMS_PLOTTER::PlotPad( const PAD* aPad, const COLOR4D& aColor, OUTLINE_MODE aPlotMode )
{
    wxPoint shape_pos = aPad->ShapePos();
    GBR_METADATA gbr_metadata;

    bool plotOnCopperLayer = ( m_layerMask & LSET::AllCuMask() ).any();
    bool plotOnExternalCopperLayer = ( m_layerMask & LSET::ExternalCuMask() ).any();

    // Pad not on the solder mask layer cannot be soldered.
    // therefore it can have a specific aperture attribute.
    // Not yet in use.
    // bool isPadOnBoardTechLayers = ( aPad->GetLayerSet() & LSET::AllBoardTechMask() ).any();

    gbr_metadata.SetCmpReference( aPad->GetParent()->GetReference() );

    if( plotOnCopperLayer )
    {
        gbr_metadata.SetNetAttribType( GBR_NETINFO_ALL );
        gbr_metadata.SetCopper( true );

        // Gives a default attribute, for instance for pads used as tracks in net ties:
        // Connector pads and SMD pads are on external layers
        // if on internal layers, they are certainly used as net tie
        // and are similar to tracks: just conductor items
        gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONDUCTOR );

        const bool useUTF8 = false;
        const bool useQuoting = false;
        gbr_metadata.SetPadName( aPad->GetNumber(), useUTF8, useQuoting );

        if( !aPad->GetNumber().IsEmpty() )
            gbr_metadata.SetPadPinFunction( aPad->GetPinFunction(), useUTF8, useQuoting );

        gbr_metadata.SetNetName( aPad->GetNetname() );

        // Some pads are mechanical pads ( through hole or smd )
        // when this is the case, they have no pad name and/or are not plated.
        // In this case gerber files have slightly different attributes.
        if( aPad->GetAttribute() == PAD_ATTRIB::NPTH || aPad->GetNumber().IsEmpty() )
            gbr_metadata.m_NetlistMetadata.m_NotInNet = true;

        if( !plotOnExternalCopperLayer )
        {
            // the .P object attribute (GBR_NETLIST_METADATA::GBR_NETINFO_PAD)
            // is used on outer layers, unless the component is embedded
            // or a "etched" component (fp only drawn, not a physical component)
            // Currently, Pcbnew does not handle embedded component, so we disable the .P
            // attribute on internal layers
            // Note the Gerber doc is not really clear about through holes pads about the .P
            gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_NET |
                                           GBR_NETLIST_METADATA::GBR_NETINFO_CMP );

        }

        // Some attributes are reserved to the external copper layers:
        // GBR_APERTURE_ATTRIB_CONNECTORPAD and GBR_APERTURE_ATTRIB_SMDPAD_CUDEF
        // for instance.
        // Pad with type PAD_ATTRIB::CONN or PAD_ATTRIB::SMD that is not on outer layer
        // has its aperture attribute set to GBR_APERTURE_ATTRIB_CONDUCTOR
        switch( aPad->GetAttribute() )
        {
        case PAD_ATTRIB::NPTH:       // Mechanical pad through hole
            gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_WASHERPAD );
            break;

        case PAD_ATTRIB::PTH :       // Pad through hole, a hole is also expected
            gbr_metadata.SetApertureAttrib(
                    GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_COMPONENTPAD );
            break;

        case PAD_ATTRIB::CONN:       // Connector pads, no solder paste but with solder mask.
            if( plotOnExternalCopperLayer )
                gbr_metadata.SetApertureAttrib(
                        GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONNECTORPAD );
            break;

        case PAD_ATTRIB::SMD:        // SMD pads (on external copper layer only)
                                     // with solder paste and mask
            if( plotOnExternalCopperLayer )
                gbr_metadata.SetApertureAttrib(
                        GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_SMDPAD_CUDEF );
            break;
        }

        // Fabrication properties can have specific GBR_APERTURE_METADATA options
        // that replace previous aperture attribute:
        switch( aPad->GetProperty() )
        {
        case PAD_PROP::BGA:          // Only applicable to outer layers
            if( plotOnExternalCopperLayer )
                gbr_metadata.SetApertureAttrib(
                        GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_BGAPAD_CUDEF );
            break;

        case PAD_PROP::FIDUCIAL_GLBL:
            gbr_metadata.SetApertureAttrib(
                    GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_FIDUCIAL_GLBL );
            break;

        case PAD_PROP::FIDUCIAL_LOCAL:
            gbr_metadata.SetApertureAttrib(
                    GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_FIDUCIAL_LOCAL );
            break;

        case PAD_PROP::TESTPOINT:    // Only applicable to outer layers
            if( plotOnExternalCopperLayer )
                gbr_metadata.SetApertureAttrib(
                        GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_TESTPOINT );
            break;

        case PAD_PROP::HEATSINK:
            gbr_metadata.SetApertureAttrib(
                    GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_HEATSINKPAD );
            break;

        case PAD_PROP::CASTELLATED:
            gbr_metadata.SetApertureAttrib(
                    GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CASTELLATEDPAD );
            break;

        case PAD_PROP::NONE:
            break;
        }

        // Ensure NPTH pads have *always* the GBR_APERTURE_ATTRIB_WASHERPAD attribute
        if( aPad->GetAttribute() == PAD_ATTRIB::NPTH )
            gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_WASHERPAD );
    }
    else
    {
        gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_CMP );
    }

    // Set plot color (change WHITE to LIGHTGRAY because
    // the white items are not seen on a white paper or screen
    m_plotter->SetColor( aColor != WHITE ? aColor : LIGHTGRAY);

    if( aPlotMode == SKETCH )
        m_plotter->SetCurrentLineWidth( GetSketchPadLineWidth(), &gbr_metadata );

    switch( aPad->GetShape() )
    {
    case PAD_SHAPE::CIRCLE:
        m_plotter->FlashPadCircle( shape_pos, aPad->GetSize().x, aPlotMode, &gbr_metadata );
        break;

    case PAD_SHAPE::OVAL:
        m_plotter->FlashPadOval( shape_pos, aPad->GetSize(), aPad->GetOrientation(), aPlotMode,
                                 &gbr_metadata );
        break;

    case PAD_SHAPE::RECT:
        m_plotter->FlashPadRect( shape_pos, aPad->GetSize(), aPad->GetOrientation(), aPlotMode,
                                 &gbr_metadata );
        break;

    case PAD_SHAPE::ROUNDRECT:
        m_plotter->FlashPadRoundRect( shape_pos, aPad->GetSize(), aPad->GetRoundRectCornerRadius(),
                                      aPad->GetOrientation(), aPlotMode, &gbr_metadata );
        break;

    case PAD_SHAPE::TRAPEZOID:
    {
        // Build the pad polygon in coordinates relative to the pad
        // (i.e. for a pad at pos 0,0, rot 0.0). Needed to use aperture macros,
        // to be able to create a pattern common to all trapezoid pads having the same shape
        wxPoint coord[4];

        // Order is lower left, lower right, upper right, upper left.
        wxSize half_size = aPad->GetSize()/2;
        wxSize trap_delta = aPad->GetDelta()/2;

        coord[0] = wxPoint( -half_size.x - trap_delta.y,  half_size.y + trap_delta.x );
        coord[1] = wxPoint( half_size.x + trap_delta.y,  half_size.y - trap_delta.x );
        coord[2] = wxPoint( half_size.x - trap_delta.y, -half_size.y + trap_delta.x );
        coord[3] = wxPoint( -half_size.x + trap_delta.y, -half_size.y - trap_delta.x );

        m_plotter->FlashPadTrapez( shape_pos, coord, aPad->GetOrientation(), aPlotMode,
                                   &gbr_metadata );
    }
        break;

    case PAD_SHAPE::CHAMFERED_RECT:
        if( m_plotter->GetPlotterType() == PLOT_FORMAT::GERBER )
        {
            static_cast<GERBER_PLOTTER*>( m_plotter )->FlashPadChamferRoundRect(
                                    shape_pos, aPad->GetSize(),
                                    aPad->GetRoundRectCornerRadius(),
                                    aPad->GetChamferRectRatio(),
                                    aPad->GetChamferPositions(),
                                    aPad->GetOrientation(), aPlotMode, &gbr_metadata );
            break;
        }

        KI_FALLTHROUGH;

    default:
    case PAD_SHAPE::CUSTOM:
    {
        const std::shared_ptr<SHAPE_POLY_SET>& polygons = aPad->GetEffectivePolygon();

        if( polygons->OutlineCount() )
        {
            m_plotter->FlashPadCustom( shape_pos, aPad->GetSize(), aPad->GetOrientation(),
                                       polygons.get(), aPlotMode, &gbr_metadata );
        }
    }
        break;
    }
}


void BRDITEMS_PLOTTER::PlotFootprintTextItems( const FOOTPRINT* aFootprint )
{
    const FP_TEXT* textItem = &aFootprint->Reference();
    int            textLayer = textItem->GetLayer();

    // Reference and value are specific items, not in graphic items list
    if( GetPlotReference() && m_layerMask[textLayer]
        && ( textItem->IsVisible() || GetPlotInvisibleText() ) )
    {
        PlotFootprintTextItem( textItem, getColor( textLayer ) );
    }

    textItem  = &aFootprint->Value();
    textLayer = textItem->GetLayer();

    if( GetPlotValue() && m_layerMask[textLayer]
        && ( textItem->IsVisible() || GetPlotInvisibleText() ) )
    {
        PlotFootprintTextItem( textItem, getColor( textLayer ) );
    }

    for( const BOARD_ITEM* item : aFootprint->GraphicalItems() )
    {
        textItem = dyn_cast<const FP_TEXT*>( item );

        if( !textItem )
            continue;

        if( !textItem->IsVisible() )
            continue;

        textLayer = textItem->GetLayer();

        if( textLayer == Edge_Cuts || textLayer >= PCB_LAYER_ID_COUNT )
            continue;

        if( !m_layerMask[textLayer] )
            continue;

        if( textItem->GetText() == wxT( "${REFERENCE}" ) && !GetPlotReference() )
            continue;

        if( textItem->GetText() == wxT( "${VALUE}" ) && !GetPlotValue() )
            continue;

        PlotFootprintTextItem( textItem, getColor( textLayer ) );
    }
}


void BRDITEMS_PLOTTER::PlotPcbGraphicItem( const BOARD_ITEM* item )
{
    switch( item->Type() )
    {
    case PCB_SHAPE_T:
        PlotPcbShape( static_cast<const PCB_SHAPE*>( item ) );
        break;

    case PCB_TEXT_T:
        PlotPcbText( static_cast<const PCB_TEXT*>( item ) );
        break;

    case PCB_DIM_ALIGNED_T:
    case PCB_DIM_CENTER_T:
    case PCB_DIM_RADIAL_T:
    case PCB_DIM_ORTHOGONAL_T:
    case PCB_DIM_LEADER_T:
        PlotDimension( static_cast<const PCB_DIMENSION_BASE*>( item ) );
        break;

    case PCB_TARGET_T:
        PlotPcbTarget( static_cast<const PCB_TARGET*>( item ) );
        break;

    default:
        break;
    }
}


void BRDITEMS_PLOTTER::PlotBoardGraphicItems()
{
    for( const BOARD_ITEM* item : m_board->Drawings() )
        PlotPcbGraphicItem( item );
}


void BRDITEMS_PLOTTER::PlotFootprintTextItem( const FP_TEXT* aTextMod, const COLOR4D& aColor )
{
    COLOR4D color = aColor;

    if( aColor == COLOR4D::WHITE )
        color = COLOR4D( LIGHTGRAY );

    m_plotter->SetColor( color );

    // calculate some text parameters :
    wxSize  size      = aTextMod->GetTextSize();
    wxPoint pos       = aTextMod->GetTextPos();
    double  orient    = aTextMod->GetDrawRotation();
    int     thickness = aTextMod->GetEffectiveTextPenWidth();

    if( aTextMod->IsMirrored() )
        size.x = -size.x;  // Text is mirrored

    // Non bold texts thickness is clamped at 1/6 char size by the low level draw function.
    // but in Pcbnew we do not manage bold texts and thickness up to 1/4 char size
    // (like bold text) and we manage the thickness.
    // So we set bold flag to true
    bool allow_bold = true;

    GBR_METADATA gbr_metadata;

    if( IsCopperLayer( aTextMod->GetLayer() ) )
        gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_NONCONDUCTOR );

    gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_CMP );
    const FOOTPRINT* parent = static_cast<const FOOTPRINT*> ( aTextMod->GetParent() );
    gbr_metadata.SetCmpReference( parent->GetReference() );

    m_plotter->SetCurrentLineWidth( thickness );

    m_plotter->Text( pos, aColor, aTextMod->GetShownText(), orient, size,
                     aTextMod->GetHorizJustify(), aTextMod->GetVertJustify(), thickness,
                     aTextMod->IsItalic(), allow_bold, false, &gbr_metadata );
}


void BRDITEMS_PLOTTER::PlotDimension( const PCB_DIMENSION_BASE* aDim )
{
    if( !m_layerMask[aDim->GetLayer()] )
        return;

    PCB_SHAPE draw;

    draw.SetStroke( STROKE_PARAMS( aDim->GetLineThickness(), PLOT_DASH_TYPE::SOLID ) );
    draw.SetLayer( aDim->GetLayer() );

    COLOR4D color = ColorSettings()->GetColor( aDim->GetLayer() );

    // Set plot color (change WHITE to LIGHTGRAY because
    // the white items are not seen on a white paper or screen
    m_plotter->SetColor( color != WHITE ? color : LIGHTGRAY);

    PlotPcbText( &aDim->Text() );

    for( const std::shared_ptr<SHAPE>& shape : aDim->GetShapes() )
    {
        switch( shape->Type() )
        {
        case SH_SEGMENT:
        {
            const SEG& seg = static_cast<const SHAPE_SEGMENT*>( shape.get() )->GetSeg();

            draw.SetShape( SHAPE_T::SEGMENT );
            draw.SetStart( wxPoint( seg.A ) );
            draw.SetEnd( wxPoint( seg.B ) );

            PlotPcbShape( &draw );
            break;
        }

        case SH_CIRCLE:
        {
            wxPoint start( shape->Centre() );
            int radius = static_cast<const SHAPE_CIRCLE*>( shape.get() )->GetRadius();

            draw.SetShape( SHAPE_T::CIRCLE );
            draw.SetFilled( false );
            draw.SetStart( start );
            draw.SetEnd( wxPoint( start.x + radius, start.y ) );

            PlotPcbShape( &draw );
            break;
        }

        default:
            break;
        }
    }
}


void BRDITEMS_PLOTTER::PlotPcbTarget( const PCB_TARGET* aMire )
{
    int dx1, dx2, dy1, dy2, radius;

    if( !m_layerMask[aMire->GetLayer()] )
        return;

    m_plotter->SetColor( getColor( aMire->GetLayer() ) );

    PCB_SHAPE draw;

    draw.SetShape( SHAPE_T::CIRCLE );
    draw.SetFilled( false );
    draw.SetStroke( STROKE_PARAMS( aMire->GetWidth(), PLOT_DASH_TYPE::SOLID ) );
    draw.SetLayer( aMire->GetLayer() );
    draw.SetStart( aMire->GetPosition() );
    radius = aMire->GetSize() / 3;

    if( aMire->GetShape() )   // shape X
        radius = aMire->GetSize() / 2;

    // Draw the circle
    draw.SetEnd( wxPoint( draw.GetStart().x + radius, draw.GetStart().y ) );

    PlotPcbShape( &draw );

    draw.SetShape( SHAPE_T::SEGMENT );

    radius = aMire->GetSize() / 2;
    dx1    = radius;
    dy1    = 0;
    dx2    = 0;
    dy2    = radius;

    if( aMire->GetShape() )    // Shape X
    {
        dx1 = dy1 = radius;
        dx2 = dx1;
        dy2 = -dy1;
    }

    wxPoint mirePos( aMire->GetPosition() );

    // Draw the X or + shape:
    draw.SetStart( wxPoint( mirePos.x - dx1, mirePos.y - dy1 ) );
    draw.SetEnd(   wxPoint( mirePos.x + dx1, mirePos.y + dy1 ) );
    PlotPcbShape( &draw );

    draw.SetStart( wxPoint( mirePos.x - dx2, mirePos.y - dy2 ) );
    draw.SetEnd(   wxPoint( mirePos.x + dx2, mirePos.y + dy2 ) );
    PlotPcbShape( &draw );
}


void BRDITEMS_PLOTTER::PlotFootprintGraphicItems( const FOOTPRINT* aFootprint )
{
    for( const BOARD_ITEM* item : aFootprint->GraphicalItems() )
    {
        const FP_SHAPE* shape = dynamic_cast<const FP_SHAPE*>( item );

        if( shape && m_layerMask[ shape->GetLayer() ] )
            PlotFootprintGraphicItem( shape );
    }
}


void BRDITEMS_PLOTTER::PlotFootprintGraphicItem( const FP_SHAPE* aShape )
{
    if( aShape->Type() != PCB_FP_SHAPE_T )
        return;

    m_plotter->SetColor( getColor( aShape->GetLayer() ) );

    bool sketch = GetPlotMode() == SKETCH;
    int  thickness = aShape->GetWidth();

    GBR_METADATA gbr_metadata;
    gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_CMP );
    const FOOTPRINT* parent = static_cast<const FOOTPRINT*> ( aShape->GetParent() );
    gbr_metadata.SetCmpReference( parent->GetReference() );

    bool isOnCopperLayer = ( m_layerMask & LSET::AllCuMask() ).any();

    if( aShape->GetLayer() == Edge_Cuts )   // happens also when plotting copper layers
    {
        gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_EDGECUT );
    }
    else if( isOnCopperLayer )  // only for items not on Edge_Cuts.
    {
        gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_ETCHEDCMP );
        gbr_metadata.SetCopper( true );
    }

    int            radius;             // Circle/arc radius.
    PLOT_DASH_TYPE lineStyle = aShape->GetStroke().GetPlotStyle();

    if( lineStyle <= PLOT_DASH_TYPE::FIRST_TYPE )
    {
        switch( aShape->GetShape() )
        {
        case SHAPE_T::SEGMENT:
            m_plotter->ThickSegment( aShape->GetStart(), aShape->GetEnd(), thickness, GetPlotMode(),
                                     &gbr_metadata );
            break;

        case SHAPE_T::RECT:
        {
            std::vector<wxPoint> pts = aShape->GetRectCorners();

            if( sketch || thickness > 0 )
            {
                m_plotter->ThickSegment( pts[0], pts[1], thickness, GetPlotMode(), &gbr_metadata );
                m_plotter->ThickSegment( pts[1], pts[2], thickness, GetPlotMode(), &gbr_metadata );
                m_plotter->ThickSegment( pts[2], pts[3], thickness, GetPlotMode(), &gbr_metadata );
                m_plotter->ThickSegment( pts[3], pts[0], thickness, GetPlotMode(), &gbr_metadata );
            }

            if( !sketch && aShape->IsFilled() )
            {
                SHAPE_LINE_CHAIN poly;

                for( const wxPoint& pt : pts )
                    poly.Append( pt );

                m_plotter->PlotPoly( poly, FILL_T::FILLED_SHAPE, -1, &gbr_metadata );
            }
        }
            break;

        case SHAPE_T::CIRCLE:
            radius = KiROUND( GetLineLength( aShape->GetStart(), aShape->GetEnd() ) );

            if( aShape->IsFilled() )
            {
                m_plotter->FilledCircle( aShape->GetStart(), radius * 2 + thickness, GetPlotMode(),
                                         &gbr_metadata );
            }
            else
            {
                m_plotter->ThickCircle( aShape->GetStart(), radius * 2, thickness, GetPlotMode(),
                                        &gbr_metadata );
            }

            break;

        case SHAPE_T::ARC:
        {
            radius = KiROUND( GetLineLength( aShape->GetCenter(), aShape->GetStart() ) );
            double startAngle  = ArcTangente( aShape->GetStart().y - aShape->GetCenter().y,
                                              aShape->GetStart().x - aShape->GetCenter().x );
            double endAngle = startAngle + aShape->GetArcAngle();

            // when startAngle == endAngle ThickArc() doesn't know whether it's 0 deg and 360 deg
            if( std::abs( aShape->GetArcAngle() ) == 3600.0 )
            {
                m_plotter->ThickCircle( aShape->GetCenter(), radius * 2, thickness, GetPlotMode(),
                                        &gbr_metadata );
            }
            else
            {
                m_plotter->ThickArc( aShape->GetCenter(), -endAngle, -startAngle, radius, thickness,
                                     GetPlotMode(), &gbr_metadata );
            }
        }
            break;

        case SHAPE_T::POLY:
            if( aShape->IsPolyShapeValid() )
            {
                std::vector<wxPoint> cornerList;
                aShape->DupPolyPointsList( cornerList );

                // We must compute board coordinates from m_PolyList which are relative to the parent
                // position at orientation 0
                const FOOTPRINT *parentFootprint = aShape->GetParentFootprint();

                if( parentFootprint )
                {
                    for( unsigned ii = 0; ii < cornerList.size(); ++ii )
                    {
                        wxPoint* corner = &cornerList[ii];
                        RotatePoint( corner, parentFootprint->GetOrientation() );
                        *corner += parentFootprint->GetPosition();
                    }
                }

                if( sketch || thickness > 0 )
                {
                    for( size_t i = 1; i < cornerList.size(); i++ )
                    {
                        m_plotter->ThickSegment( cornerList[i - 1], cornerList[i], thickness,
                                                 GetPlotMode(), &gbr_metadata );
                    }

                    m_plotter->ThickSegment( cornerList.back(), cornerList.front(), thickness,
                                             GetPlotMode(), &gbr_metadata );

                }

                if( !sketch && aShape->IsFilled() )
                {
                    // This must be simplified and fractured to prevent overlapping polygons
                    // from generating invalid Gerber files

                    SHAPE_LINE_CHAIN line( cornerList );
                    SHAPE_POLY_SET tmpPoly;

                    line.SetClosed( true );
                    tmpPoly.AddOutline( line );
                    tmpPoly.Fracture( SHAPE_POLY_SET::PM_FAST );

                    for( int jj = 0; jj < tmpPoly.OutlineCount(); ++jj )
                    {
                        SHAPE_LINE_CHAIN &poly = tmpPoly.Outline( jj );
                        m_plotter->PlotPoly( poly, FILL_T::FILLED_SHAPE, thickness, &gbr_metadata );
                    }
                }
            }

            break;

        case SHAPE_T::BEZIER:
            m_plotter->BezierCurve( aShape->GetStart(), aShape->GetBezierC1(),
                                    aShape->GetBezierC2(), aShape->GetEnd(), 0, thickness );
            break;

        default:
            wxASSERT_MSG( false, "Unhandled FP_SHAPE shape" );
            break;
        }
    }
    else
    {
        std::vector<SHAPE*> shapes = aShape->MakeEffectiveShapes( true );

        for( SHAPE* shape : shapes )
        {
            STROKE_PARAMS::Stroke( shape, lineStyle, thickness, m_plotter->RenderSettings(),
                                   [&]( const wxPoint& a, const wxPoint& b )
                                   {
                                       m_plotter->ThickSegment( a, b, thickness, GetPlotMode(),
                                                                &gbr_metadata );
                                   } );
        }

        for( SHAPE* shape : shapes )
            delete shape;
    }
}


void BRDITEMS_PLOTTER::PlotPcbText( const PCB_TEXT* aText )
{
    wxString shownText( aText->GetShownText() );

    if( shownText.IsEmpty() )
        return;

    if( !m_layerMask[aText->GetLayer()] )
        return;

    GBR_METADATA gbr_metadata;

    if( IsCopperLayer( aText->GetLayer() ) )
        gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_NONCONDUCTOR );

    COLOR4D color = getColor( aText->GetLayer() );
    m_plotter->SetColor( color );

    wxSize  size      = aText->GetTextSize();
    wxPoint pos       = aText->GetTextPos();
    double  orient    = aText->GetTextAngle();
    int     thickness = aText->GetEffectiveTextPenWidth();

    if( aText->IsMirrored() )
        size.x = -size.x;

    // Non bold texts thickness is clamped at 1/6 char size by the low level draw function.
    // but in Pcbnew we do not manage bold texts and thickness up to 1/4 char size
    // (like bold text) and we manage the thickness.
    // So we set bold flag to true
    bool allow_bold = true;

    m_plotter->SetCurrentLineWidth( thickness );

    if( aText->IsMultilineAllowed() )
    {
        std::vector<wxPoint> positions;
        wxArrayString strings_list;
        wxStringSplit( shownText, strings_list, '\n' );
        positions.reserve(  strings_list.Count() );

        aText->GetLinePositions( positions, strings_list.Count() );

        for( unsigned ii = 0; ii < strings_list.Count(); ii++ )
        {
            wxString& txt =  strings_list.Item( ii );
            m_plotter->Text( positions[ii], color, txt, orient, size, aText->GetHorizJustify(),
                             aText->GetVertJustify(), thickness, aText->IsItalic(),
                             allow_bold, false, &gbr_metadata );
        }
    }
    else
    {
        m_plotter->Text( pos, color, shownText, orient, size, aText->GetHorizJustify(),
                         aText->GetVertJustify(), thickness, aText->IsItalic(), allow_bold,
                         false, &gbr_metadata );
    }
}


void BRDITEMS_PLOTTER::PlotFilledAreas( const ZONE* aZone, const SHAPE_POLY_SET& polysList )
{
    if( polysList.IsEmpty() )
        return;

    GBR_METADATA gbr_metadata;

    bool isOnCopperLayer = aZone->IsOnCopperLayer();

    if( isOnCopperLayer )
    {
        gbr_metadata.SetNetName( aZone->GetNetname() );
        gbr_metadata.SetCopper( true );

        // Zones with no net name can exist.
        // they are not used to connect items, so the aperture attribute cannot
        // be set as conductor
        if( aZone->GetNetname().IsEmpty() )
        {
            gbr_metadata.SetApertureAttrib(
                    GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_NONCONDUCTOR );
        }
        else
        {
            gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONDUCTOR );
            gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_NET );
        }
    }

    m_plotter->SetColor( getColor( aZone->GetLayer() ) );

    m_plotter->StartBlock( nullptr );    // Clean current object attributes

    /* Plot all filled areas: filled areas have a filled area and a thick
     * outline (depending on the fill area option we must plot the filled area itself
     * and plot the thick outline itself, if the thickness has meaning (at least is > 1)
     *
     * in non filled mode the outline is plotted, but not the filling items
     */
    int outline_thickness = aZone->GetFilledPolysUseThickness() ? aZone->GetMinThickness() : 0;

    for( int idx = 0; idx < polysList.OutlineCount(); ++idx )
    {
        const SHAPE_LINE_CHAIN& outline = polysList.Outline( idx );

        // Plot the current filled area (as region for Gerber plotter
        // to manage attributes) and its outline for thick outline
        if( GetPlotMode() == FILLED )
        {
            if( m_plotter->GetPlotterType() == PLOT_FORMAT::GERBER )
            {
                if( outline_thickness > 0 )
                {
                    m_plotter->PlotPoly( outline, FILL_T::NO_FILL, outline_thickness,
                                         &gbr_metadata );

                    // Ensure the outline is closed:
                    int last_idx = outline.PointCount() - 1;

                    if( outline.CPoint( 0 ) != outline.CPoint( last_idx ) )
                    {
                        m_plotter->ThickSegment( wxPoint( outline.CPoint( 0 ) ),
                                                 wxPoint( outline.CPoint( last_idx ) ),
                                                 outline_thickness, GetPlotMode(), &gbr_metadata );
                    }
                }

                static_cast<GERBER_PLOTTER*>( m_plotter )->PlotGerberRegion( outline,
                                                                             &gbr_metadata );
            }
            else
            {
                m_plotter->PlotPoly( outline, FILL_T::FILLED_SHAPE, outline_thickness,
                                     &gbr_metadata );
            }
        }
        else
        {
            if( outline_thickness )
            {
                int last_idx = outline.PointCount() - 1;

                for( int jj = 1; jj <= last_idx; jj++ )
                {
                    m_plotter->ThickSegment( wxPoint( outline.CPoint( jj - 1) ),
                                             wxPoint( outline.CPoint( jj ) ),
                                             outline_thickness,
                                             GetPlotMode(), &gbr_metadata );
                }

                // Ensure the outline is closed:
                if( outline.CPoint( 0 ) != outline.CPoint( last_idx ) )
                {
                    m_plotter->ThickSegment( wxPoint( outline.CPoint( 0 ) ),
                                             wxPoint( outline.CPoint( last_idx ) ),
                                             outline_thickness,
                                             GetPlotMode(), &gbr_metadata );
                }
            }

            m_plotter->SetCurrentLineWidth( -1 );
        }
    }

    m_plotter->EndBlock( nullptr );    // Clear object attributes
}


void BRDITEMS_PLOTTER::PlotPcbShape( const PCB_SHAPE* aShape )
{
    if( !m_layerMask[aShape->GetLayer()] )
        return;

    bool           sketch = GetPlotMode() == SKETCH;
    int            thickness = aShape->GetWidth();
    PLOT_DASH_TYPE lineStyle = aShape->GetStroke().GetPlotStyle();

    m_plotter->SetColor( getColor( aShape->GetLayer() ) );

    GBR_METADATA gbr_metadata;

    if( aShape->GetLayer() == Edge_Cuts )
        gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_EDGECUT );

    if( IsCopperLayer( aShape->GetLayer() ) )
        // Graphic items (PCB_SHAPE, TEXT) having no net have the NonConductor attribute
        // Graphic items having a net have the Conductor attribute, but are not (yet?)
        // supported in Pcbnew
        gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_NONCONDUCTOR );

    if( lineStyle <= PLOT_DASH_TYPE::FIRST_TYPE )
    {
        switch( aShape->GetShape() )
        {
        case SHAPE_T::SEGMENT:
            m_plotter->ThickSegment( aShape->GetStart(), aShape->GetEnd(), thickness, GetPlotMode(),
                                     &gbr_metadata );
            break;

        case SHAPE_T::CIRCLE:
            if( aShape->IsFilled() )
            {
                m_plotter->FilledCircle( aShape->GetStart(), aShape->GetRadius() * 2 + thickness,
                                         GetPlotMode(), &gbr_metadata );
            }
            else
            {
                m_plotter->ThickCircle( aShape->GetStart(), aShape->GetRadius() * 2, thickness,
                                        GetPlotMode(), &gbr_metadata );
            }

            break;

        case SHAPE_T::ARC:
        {
            double startAngle  = ArcTangente( aShape->GetStart().y - aShape->GetCenter().y,
                                              aShape->GetStart().x - aShape->GetCenter().x );
            double endAngle = startAngle + aShape->GetArcAngle();

            // when startAngle == endAngle ThickArc() doesn't know whether it's 0 deg and 360 deg
            if( std::abs( aShape->GetArcAngle() ) == 3600.0 )
            {
                m_plotter->ThickCircle( aShape->GetCenter(), aShape->GetRadius() * 2, thickness,
                                        GetPlotMode(), &gbr_metadata );
            }
            else
            {
                m_plotter->ThickArc( aShape->GetCenter(), -endAngle, -startAngle,
                                     aShape->GetRadius(), thickness, GetPlotMode(), &gbr_metadata );
            }

            break;
        }

        case SHAPE_T::BEZIER:
            m_plotter->BezierCurve( aShape->GetStart(), aShape->GetBezierC1(),
                                    aShape->GetBezierC2(), aShape->GetEnd(), 0, thickness );
            break;

        case SHAPE_T::POLY:
            if( aShape->IsPolyShapeValid() )
            {
                if( sketch || thickness > 0 )
                {
                    for( auto it = aShape->GetPolyShape().CIterateSegments( 0 ); it; it++ )
                    {
                        auto seg = it.Get();
                        m_plotter->ThickSegment( wxPoint( seg.A ), wxPoint( seg.B ),
                                                 thickness, GetPlotMode(), &gbr_metadata );
                    }
                }

                if( !sketch && aShape->IsFilled() )
                {
                    m_plotter->SetCurrentLineWidth( thickness, &gbr_metadata );

                    // Draw the polygon: only one polygon is expected
                    // However we provide a multi polygon shape drawing
                    // ( for the future or to show a non expected shape )
                    // This must be simplified and fractured to prevent overlapping polygons
                    // from generating invalid Gerber files
                    auto tmpPoly = SHAPE_POLY_SET( aShape->GetPolyShape() );
                    tmpPoly.Fracture( SHAPE_POLY_SET::PM_FAST );

                    for( int jj = 0; jj < tmpPoly.OutlineCount(); ++jj )
                    {
                        SHAPE_LINE_CHAIN& poly = tmpPoly.Outline( jj );
                        m_plotter->PlotPoly( poly, FILL_T::FILLED_SHAPE, thickness, &gbr_metadata );
                    }
                }
            }

            break;

        case SHAPE_T::RECT:
        {
            std::vector<wxPoint> pts = aShape->GetRectCorners();

            if( sketch || thickness > 0 )
            {
                m_plotter->ThickSegment( pts[0], pts[1], thickness, GetPlotMode(), &gbr_metadata );
                m_plotter->ThickSegment( pts[1], pts[2], thickness, GetPlotMode(), &gbr_metadata );
                m_plotter->ThickSegment( pts[2], pts[3], thickness, GetPlotMode(), &gbr_metadata );
                m_plotter->ThickSegment( pts[3], pts[0], thickness, GetPlotMode(), &gbr_metadata );
            }

            if( !sketch && aShape->IsFilled() )
            {
                SHAPE_LINE_CHAIN poly;

                for( const wxPoint& pt : pts )
                    poly.Append( pt );

                m_plotter->PlotPoly( poly, FILL_T::FILLED_SHAPE, -1, &gbr_metadata );
            }

            break;
        }

        default:
            UNIMPLEMENTED_FOR( aShape->SHAPE_T_asString() );
        }
    }
    else
    {
        std::vector<SHAPE*> shapes = aShape->MakeEffectiveShapes( true );

        for( SHAPE* shape : shapes )
        {
            STROKE_PARAMS::Stroke( shape, lineStyle, thickness, m_plotter->RenderSettings(),
                                   [&]( const wxPoint& a, const wxPoint& b )
                                   {
                                       m_plotter->ThickSegment( a, b, thickness, GetPlotMode(),
                                                                &gbr_metadata );
                                   } );
        }

        for( SHAPE* shape : shapes )
            delete shape;
    }
}


void BRDITEMS_PLOTTER::plotOneDrillMark( PAD_DRILL_SHAPE_T aDrillShape, const wxPoint& aDrillPos,
                                         const wxSize& aDrillSize, const wxSize& aPadSize,
                                         double aOrientation, int aSmallDrill )
{
    wxSize drillSize = aDrillSize;

    // Small drill marks have no significance when applied to slots
    if( aSmallDrill && aDrillShape == PAD_DRILL_SHAPE_CIRCLE )
        drillSize.x = std::min( aSmallDrill, drillSize.x );

    // Round holes only have x diameter, slots have both
    drillSize.x -= getFineWidthAdj();
    drillSize.x = Clamp( 1, drillSize.x, aPadSize.x - 1 );

    if( aDrillShape == PAD_DRILL_SHAPE_OBLONG )
    {
        drillSize.y -= getFineWidthAdj();
        drillSize.y = Clamp( 1, drillSize.y, aPadSize.y - 1 );
        m_plotter->FlashPadOval( aDrillPos, drillSize, aOrientation, GetPlotMode(), nullptr );
    }
    else
    {
        m_plotter->FlashPadCircle( aDrillPos, drillSize.x, GetPlotMode(), nullptr );
    }
}


void BRDITEMS_PLOTTER::PlotDrillMarks()
{
    /* If small drills marks were requested prepare a clamp value to pass
       to the helper function */
    int smallDrill = GetDrillMarksType() == PCB_PLOT_PARAMS::SMALL_DRILL_SHAPE
                    ? Millimeter2iu( ADVANCED_CFG::GetCfg().m_SmallDrillMarkSize ) : 0;

    /* In the filled trace mode drill marks are drawn white-on-black to scrape
       the underlying pad. This works only for drivers supporting color change,
       obviously... it means that:
       - PS, SVG and PDF output is correct (i.e. you have a 'donut' pad)
       - In HPGL you can't see them
       - In gerbers you can't see them, too. This is arguably the right thing to
         do since having drill marks and high speed drill stations is a sure
         recipe for broken tools and angry manufacturers. If you *really* want them
         you could start a layer with negative polarity to scrape the film.
       - In DXF they go into the 'WHITE' layer. This could be useful.
     */
    if( GetPlotMode() == FILLED )
         m_plotter->SetColor( WHITE );

    for( PCB_TRACK* tracks : m_board->Tracks() )
    {
        const PCB_VIA* via = dyn_cast<const PCB_VIA*>( tracks );

        if( via )
        {
            plotOneDrillMark( PAD_DRILL_SHAPE_CIRCLE, via->GetStart(),
                              wxSize( via->GetDrillValue(), 0 ),
                              wxSize( via->GetWidth(), 0 ), 0, smallDrill );
        }
    }

    for( FOOTPRINT* footprint : m_board->Footprints() )
    {
        for( PAD* pad : footprint->Pads() )
        {
            if( pad->GetDrillSize().x == 0 )
                continue;

            plotOneDrillMark( pad->GetDrillShape(), pad->GetPosition(), pad->GetDrillSize(),
                              pad->GetSize(), pad->GetOrientation(), smallDrill );
        }
    }

    if( GetPlotMode() == FILLED )
        m_plotter->SetColor( BLACK );
}